Edible dog dental chews can be a part of an overall dental care routine for your dog, but they are not a substitute for regular professional dental care from a veterinarian. These chews can help promote better oral health to some extent, but their effectiveness varies based on factors such as the ingredients, the dog's chewing habits, and their overall dental hygiene.

Here are some points to consider about edible dog dental chews:

1. Plaque and tartar reduction: Some dental chews are designed to help reduce plaque and tartar buildup on your dog's teeth. Chewing on these treats can help mechanically scrub away some of the debris and plaque, which may contribute to better oral health.

2. Saliva stimulation: Chewing on dental chews can stimulate saliva production, which can help naturally cleanse the mouth and promote healthier gums.

3. Ingredients: Look for dental chews that are specifically formulated to promote oral health. Some may contain ingredients like enzymes or additives that are intended to help break down plaque or tartar.

4. Supervision: It's important to supervise your dog while they're chewing on dental treats, especially if they tend to swallow large pieces. Choking hazards can arise if a dog tries to swallow a piece that's too big.

5. Not a substitute: While dental chews can contribute to oral health maintenance, they are not a replacement for regular dental care, including professional cleanings done by a veterinarian. Regular brushing of your dog's teeth and professional dental cleanings are still essential for comprehensive oral health.

6. Caloric Intake: Many of these dental chews are high in calories and that needs to be taken into consideration when budgeting your dogs daily food and treats.

7. Consultation with a vet: Before introducing any new dental products or treats into your dog's routine, it's a good idea to consult with your veterinarian. They can provide guidance on the best approach to maintaining your dog's oral health and recommend products that are appropriate for your dog's specific needs.

In conclusion, edible dog dental chews can play a role in promoting better oral health, but they should be used as part of a comprehensive dental care routine that includes regular veterinary check-ups, professional cleanings, and daily brushing of your dog's teeth.

Here is an interesting study done on humans regarding enzyme containing toothpastes: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7835853/